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The Blood Pressure Champion 🇺🇸 on Twitter: "While mere mortals have a resting heart rate (RHR) of 60 to 80 beats per minute (bpm), world class athletes like sprinter Usain Bolt and
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Here's all you can do in 9.58 seconds, Usain Bolt's best 100m time | Olympics - Hindustan Times
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Usain Bolt talks running, speed, his body, fame and selfies ahead of the 2016 olympics | British GQ | British GQ
Pensioner Daniel Green records 'world's slowest ever heart beat' at 26bpm | Daily Mail Online
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